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Data & Statistics

Browse resources for finding statistics and datasets

What are Large Datasets?

For the purposes of this guide, these are sets of data that may be from large surveys or studies and contain raw data, microdata (information on individual respondents), or all variables for export and manipulation.

Macrodata vs. Microdata


In economics and statistics, macrodata are data at the aggregate or summary level. Macrodata are composed of a combination of several measurements or observations. 

Examples of macrodata include:

  • The average education level for a census tract, county, or state
  • The overall inflation rate for a country
  • The CO2 emissions for a metropolitan area


As opposed to macrodata, microdata are the data in their raw form, at the level of individual observations or measurements. In this type of data, each row represents an individual observation or measurement. 

Examples of microdata include:

  • The General Social Survey
  • The raw output from an emissions sensor
  • Public-use microdata samples from the United States Census

Sources for Finding Large Datasets

There are numerous datasets available from government agencies, organizations, and individual researchers. Try these sources to find these: